It took some doin' but the battle
against foreign object damage is being
won.
 First, there was the sand and dust
separator that corralled dirt in the air
and kept it from causing erosion of the
engine compressor blades.
 Now, along comes a screen that goes
outside of the separator on the UH-1B,
C, D, H and AH-1G models to keep out
nuts, bolts, cotter pins, safety wire, dzus
fasteners and other large objects.


1560-167-8113 is the screen you want. 3 a trapping sand and dirt to eliminate ero-
And Ch 1 (16 Aug 68) to MWO 55- y sion of the engine compressor blades.
1520-210-30/17 and Ch 5 (4 Sep 68) Blade erosion reduces efficiency-robs
to MWO 55-1520-211-30/35 on instal- an engine of power.
lation of the particle separator puts it .g The engine screen takes over where
on most models. An MWO to put the L /the screen leaves off to get rid of large
screen on the Huey(obra is in the mill. objects.
 You get a maximum power loss of 1 (H But what about hardware even
per cent, but it makes your engine safe tools-left behind after maintenance
from FOD about 99 per cent of the time. is pulled with the separator and screen
 It's that 1 per cent possibility you off? That's the rub.
crewchiefs and mechanics want to keep When you pull line maintenance try
in mind. these PM tips to help prevent engine
 FOD.
 MAKE SURE
 YOUR BIRP
 HAS A KEEP SEPARATOR CLEAN
 L SCREEN.
 Remember that during the dry season
 dirt in the separator is going to build
 up fast. Before you know it you've got
 several inches collected in the box
 assemblies.


 The PMI checksheets call for clean-
 ..ing the separator. But if the dust is
 really flying where you are it's a right-
 a smart idea to clean it more often.
e job of Like-empty the dirt out of the


boxes on the Daily.







 BE SURE
 SEPARATOR
 IS KEPT
 CLEAN